What is the actual count of blocked requests?

Hello! Given a scenario where I have a native filter and a 3rd party filter applied and a domain is common to both filters. Now, when the domain is blocked, does a +1 count get added to each of the filters in statistics or are the filters applied in a particular order, and whichever filters blocked the domain gets its count?

Also, what's the performance cost of having filters having more domains in common across multiple filters added? Do you aggregate all the entries from all the filters and then apply the blocking or iterate over all the filters and apply the blocking?

Thanks for listening.